Nieby
| Nieby Nyby | |
|---|---|
| The windmill "Charlotte" in Nieby | |
| Coordinates: 54°46′N 9°55′E / 54.767°N 9.917°E | |
| Country | Germany | 
| State | Schleswig-Holstein | 
| District | Schleswig-Flensburg | 
| Municipal assoc. | Geltinger Bucht | 
| Government | |
| • Mayor | Dirk Hansen | 
| Area | |
|  • Total | 8.07 km2 (3.12 sq mi) | 
| Elevation | 9 m (30 ft) | 
| Population  (2023-12-31) | |
|  • Total | 136 | 
| • Density | 17/km2 (44/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| Postal codes | 24395 | 
| Dialling codes | 04643 | 
| Vehicle registration | SL | 
| Website | nieby | 
Nieby (German: [ˈniːbiː] ⓘ, Danish: Nyby) is a municipality in the district of Schleswig-Flensburg, in Schleswig-Holstein, Germany.